User manual ACER VERITON M421

[. . . ] NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. If you purchased a DellTM n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable. ____________________ Information in this document is subject to change without notice. Reproduction in any manner whatsoever without the written permission of Dell Inc. Trademarks used in this text: Dell, the ACER logo, Inspiron, Dell Precision, Dimension, OptiPlex, Latitude, PowerEdge, PowerVault, PowerApp, DellNet, PowerConnect, and Axim are trademarks of Dell Inc. ; Intel and Pentium are registered trademarks of Intel Corporation; Microsoft, Windows, and Outlook are registered trademarks of Microsoft Corporation. [. . . ] None. ABCD The computer is in a normal operating condition after POST. ABCD = yellow = green = off Dell Diagnostics CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide. If you experience a problem with your computer, perform the checks in "Solving Problems" on page 33 and run the Dell Diagnostics before you contact Dell for technical assistance. NOTICE: The Dell Diagnostics works only on DellTM computers. 1 2 Turn on (or restart) your computer. When the ACERTM logo appears, press <F12> immediately. If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows® desktop. Then shut down your computer (see page 59) and try again. 3 When the boot device list appears, highlight Boot to Utility Partition and press <Enter>. 52 Advanced Troubleshooting 4 When the Dell Diagnostics Main Menu appears, select the test you want to run (see page 53). Dell Diagnostics Main Menu 1 After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the option you want. Option Express Test Function Performs a quick test of devices. This test typically takes 10 to 20 minutes and requires no interaction on your part. Run Express Test first to increase the possibility of tracing the problem quickly. This test typically takes an hour or more and requires you to answer questions periodically. You can customize the tests you want to run. Lists the most common symptoms encountered and allows you to select a test based on the symptom of the problem you are having. Extended Test Custom Test Symptom Tree 2 If a problem is encountered during a test, a message appears with an error code and a description of the problem. Right-click the device for which the new driver was installed and click Properties. Click Roll Back Driver. If Device Driver Rollback does not resolve the problem, then use System Restore to return your computer to the operating state that existed before you installed the new driver. Manually Reinstalling Drivers 1 2 3 4 5 6 7 8 9 10 After copying the required driver files to your hard drive, click the Start button and right-click My Computer. Click the Hardware tab and click Device Manager. Double-click the type of device for which you are installing the driver. Double-click the name of the device for which you are installing the driver. Click the Driver tab and click Update Driver. Click Install from a list or specific location (Advanced) and click Next. Click Browse and browse to the location to which you previously extracted the driver files. When the name of the appropriate driver appears, click Next. Click Finish and restart your computer. Advanced Troubleshooting 55 www. dell. com | support. dell. com Restoring Your Operating System You can restore your operating system in the following ways: · · Microsoft Windows XP System Restore returns your computer to an earlier operating state without affecting data files. Dell PC Restore by Symantec restores your hard drive to the operating state it was in when you purchased the computer. [. . . ] This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: This device may not cause harmful interference. Appendix 121 www. dell. com | support. dell. com This device must accept any interference received, including interference that may cause undesired operation. Class A This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause harmful interference with radio communications. [. . . ]